Mini fridge vs. refrigerator: running cost
A mini fridge is cheaper to run: about $49 a year versus $90 for a refrigerator at typical use and 17.99¢/kWh, a $41 difference.
| Mini fridge | Refrigerator | |
|---|---|---|
| Typical watts | 80 W | 150 W |
| Watt range | 50–120 W | 100–250 W |
| Typical use | 270 kWh a year | 500 kWh a year |
| Energy per year | 270 kWh | 500 kWh |
| Cost per hour | 0.6¢ | 1.0¢ |
| Cost per day | 13¢ | 25¢ |
| Cost per month | $4.05 | $7.50 |
| Cost per year | $49 | $90 |
| Per year in Hawaii (43.51¢) | $117 | $218 |
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What drives the difference
- Mini fridge: Compact refrigerators of 1.7-4.5 cu ft use roughly 200-350 kWh a year; ENERGY STAR models sit near the low end. Small skincare/thermoelectric 4-6 liter coolers are separate and draw about 40-60 W constantly.
- Refrigerator: A modern 18-22 cu ft top- or bottom-freezer refrigerator uses about 400-550 kWh a year; larger 25+ cu ft and through-door ice models run 600-750 kWh. The compressor cycles on roughly a third of the time.
Ways to cut either cost
ENERGY STAR compact models use at least 10% less than the federal minimum and many are under 250 kWh a year.
See options on AmazonTop-freezer models with no through-door ice dispenser use 10-25% less energy than side-by-side or French door units of the same size.
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Frequently asked questions
Which costs more to run, a mini fridge or a refrigerator?
At typical use and the U.S. average rate (17.99¢/kWh), a refrigerator costs about $90 a year versus $49 for a mini fridge. That's $41 more, or 1.9× as much.
How many watts do mini fridge and refrigerator use?
A mini fridge typically draws 80 W (range 50–120 W). A refrigerator draws 150 W (range 100–250 W). Watts alone don't decide cost. Hours of use, cycling and standby matter just as much.
Rates: EIA, 12 months ending 2026-07. Methodology.